How many boxes of flooring do I need?

Divide your room's square footage by the coverage per box (on the product label), then add about 10% for waste. Enter your room size and box coverage above.

How much flooring waste should I add?

10% for straight layouts, and 15% for diagonal installs or complex rooms with lots of cuts.

Should I measure each room separately?

Yes — calculate each room and add the boxes together, and keep at least one spare box for future repairs.

Flooring Calculator

Find out how many boxes of laminate, vinyl, or hardwood flooring you need. Enter your room size and the coverage per box to get the box count, including a waste allowance.

Flooring calculator

Enter the square footage one box covers (from the product label). Includes a waste allowance for cuts — 10% is typical, more for diagonal or plank patterns. Keep a spare box for future repairs.

How to use it

Enter the room length and width in feet.
Enter the box coverage in ft² from the product label.
Set a waste % (10% is typical) and read off the number of boxes.

How it's calculated

We divide the room's square footage by the coverage printed on each box, add your waste percentage, and round up to whole boxes.

Frequently asked questions

How many boxes of flooring do I need?: Divide your room's square footage by the coverage per box (on the product label), then add about 10% for waste. Enter your room size and box coverage above.
How much flooring waste should I add?: 10% for straight layouts, and 15% for diagonal installs or complex rooms with lots of cuts.
Should I measure each room separately?: Yes — calculate each room and add the boxes together, and keep at least one spare box for future repairs.

Embed this calculator

Free to use on your own website — copy and paste this code. All we ask is the link back.

<iframe id="hmc-flooring-calculator" src="https://howmanycalc.com/embed/flooring-calculator/" title="Flooring calculator by HowManyCalc" width="100%" height="520" style="border:1px solid #e4e8ec;border-radius:12px;max-width:680px" loading="lazy"></iframe>
<p style="font:12px sans-serif">Flooring calculator by <a href="https://howmanycalc.com/flooring-calculator/">HowManyCalc</a></p>
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Last updated June 2026.